Prepare for the Prehospital Trauma Life Support (PHTLS) exam. Access diverse quizzes and multiple-choice questions, each with hints and comprehensive explanations. Enhance your readiness and confidence for the PHTLS certification exam!

Multiple Choice

What FiO2 and oxygen delivery method is typically used initially for an adult trauma patient with adequate breathing in the field?

In field trauma care, preventing hypoxia is the priority even if the patient appears to be breathing adequately. The quickest, most reliable way to maximize oxygen delivery is to use a non-rebreather mask at high flow, delivering near-100% FiO2 (typically with about 15 L/min and a good seal). This rapidly raises the patient’s oxygen saturation toward the target range of about 94–98% in most adults. Once SpO2 is within that range, oxygen can be titrated down as appropriate. Nasal cannula provides only low FiO2, a Venturi mask delivers a fixed, often lower FiO2, and room air offers no supplemental oxygen, making them less suitable as the initial management in this scenario.

In field trauma care, preventing hypoxia is the priority even if the patient appears to be breathing adequately. The quickest, most reliable way to maximize oxygen delivery is to use a non-rebreather mask at high flow, delivering near-100% FiO2 (typically with about 15 L/min and a good seal). This rapidly raises the patient’s oxygen saturation toward the target range of about 94–98% in most adults. Once SpO2 is within that range, oxygen can be titrated down as appropriate. Nasal cannula provides only low FiO2, a Venturi mask delivers a fixed, often lower FiO2, and room air offers no supplemental oxygen, making them less suitable as the initial management in this scenario.